>tr|A0A1Z2R833|A0A1Z2R833_LITSY MHC class II antigen beta-chain (Fragment) OS=Lithobates sylvaticus OX=45438 PE=4 SV=1
DFVFQGKGQCYYRNGTEDIRLLTRYIYNQEEYVYFDSDKGFFIPRTEYGRLSADYWNKNP
DTLGRARAEVETICKHNYQIFEPVAIDRK